1 files changed, 139 insertions, 0 deletions
diff --git a/js/dist/util/scrollbar.js b/js/dist/util/scrollbar.js
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+++ b/js/dist/util/scrollbar.js
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+/*!
+  * Bootstrap scrollbar.js v5.2.0-beta1 (https://getbootstrap.com/)
+  * Copyright 2011-2022 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+  */
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('../dom/selector-engine'), require('../dom/manipulator'), require('./index')) :
+  typeof define === 'function' && define.amd ? define(['../dom/selector-engine', '../dom/manipulator', './index'], factory) :
+  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Scrollbar = factory(global.SelectorEngine, global.Manipulator, global.Index));
+})(this, (function (SelectorEngine, Manipulator, index) { 'use strict';
+
+  const _interopDefaultLegacy = e => e && typeof e === 'object' && 'default' in e ? e : { default: e };
+
+  const SelectorEngine__default = /*#__PURE__*/_interopDefaultLegacy(SelectorEngine);
+  const Manipulator__default = /*#__PURE__*/_interopDefaultLegacy(Manipulator);
+
+  /**
+   * --------------------------------------------------------------------------
+   * Bootstrap (v5.2.0-beta1): util/scrollBar.js
+   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+   * --------------------------------------------------------------------------
+   */
+  /**
+   * Constants
+   */
+
+  const SELECTOR_FIXED_CONTENT = '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top';
+  const SELECTOR_STICKY_CONTENT = '.sticky-top';
+  const PROPERTY_PADDING = 'padding-right';
+  const PROPERTY_MARGIN = 'margin-right';
+  /**
+   * Class definition
+   */
+
+  class ScrollBarHelper {
+    constructor() {
+      this._element = document.body;
+    } // Public
+
+
+    getWidth() {
+      // https://developer.mozilla.org/en-US/docs/Web/API/Window/innerWidth#usage_notes
+      const documentWidth = document.documentElement.clientWidth;
+      return Math.abs(window.innerWidth - documentWidth);
+    }
+
+    hide() {
+      const width = this.getWidth();
+
+      this._disableOverFlow(); // give padding to element to balance the hidden scrollbar width
+
+
+      this._setElementAttributes(this._element, PROPERTY_PADDING, calculatedValue => calculatedValue + width); // trick: We adjust positive paddingRight and negative marginRight to sticky-top elements to keep showing fullwidth
+
+
+      this._setElementAttributes(SELECTOR_FIXED_CONTENT, PROPERTY_PADDING, calculatedValue => calculatedValue + width);
+
+      this._setElementAttributes(SELECTOR_STICKY_CONTENT, PROPERTY_MARGIN, calculatedValue => calculatedValue - width);
+    }
+
+    reset() {
+      this._resetElementAttributes(this._element, 'overflow');
+
+      this._resetElementAttributes(this._element, PROPERTY_PADDING);
+
+      this._resetElementAttributes(SELECTOR_FIXED_CONTENT, PROPERTY_PADDING);
+
+      this._resetElementAttributes(SELECTOR_STICKY_CONTENT, PROPERTY_MARGIN);
+    }
+
+    isOverflowing() {
+      return this.getWidth() > 0;
+    } // Private
+
+
+    _disableOverFlow() {
+      this._saveInitialAttribute(this._element, 'overflow');
+
+      this._element.style.overflow = 'hidden';
+    }
+
+    _setElementAttributes(selector, styleProperty, callback) {
+      const scrollbarWidth = this.getWidth();
+
+      const manipulationCallBack = element => {
+        if (element !== this._element && window.innerWidth > element.clientWidth + scrollbarWidth) {
+          return;
+        }
+
+        this._saveInitialAttribute(element, styleProperty);
+
+        const calculatedValue = window.getComputedStyle(element).getPropertyValue(styleProperty);
+        element.style.setProperty(styleProperty, `${callback(Number.parseFloat(calculatedValue))}px`);
+      };
+
+      this._applyManipulationCallback(selector, manipulationCallBack);
+    }
+
+    _saveInitialAttribute(element, styleProperty) {
+      const actualValue = element.style.getPropertyValue(styleProperty);
+
+      if (actualValue) {
+        Manipulator__default.default.setDataAttribute(element, styleProperty, actualValue);
+      }
+    }
+
+    _resetElementAttributes(selector, styleProperty) {
+      const manipulationCallBack = element => {
+        const value = Manipulator__default.default.getDataAttribute(element, styleProperty); // We only want to remove the property if the value is `null`; the value can also be zero
+
+        if (value === null) {
+          element.style.removeProperty(styleProperty);
+          return;
+        }
+
+        Manipulator__default.default.removeDataAttribute(element, styleProperty);
+        element.style.setProperty(styleProperty, value);
+      };
+
+      this._applyManipulationCallback(selector, manipulationCallBack);
+    }
+
+    _applyManipulationCallback(selector, callBack) {
+      if (index.isElement(selector)) {
+        callBack(selector);
+        return;
+      }
+
+      for (const sel of SelectorEngine__default.default.find(selector, this._element)) {
+        callBack(sel);
+      }
+    }
+
+  }
+
+  return ScrollBarHelper;
+
+}));
+//# sourceMappingURL=scrollbar.js.map